Dredge bucket and lip assembly



Dec. 11, 1,934. w. H. STmES 1,984,324

DREDGE BUCKET AND LIP ASSEMBLY Filed Aug. 3, 1934 Patented Dec. 11, 1934PATENT OFFICE DREDGE BUCKET AND LIP ASSEMBLY William H. Stires, HighBridge, N. J., assigner to Taylor-Wharton Iron & Steel Company, HighBridge, N. J., a corporation of New Jersey Application August 3, 1934,Serial No. 738,365

10 Claims.

The invention relates to chain dredge buckets of the type in which hoodstraddling lips are provided to keep the bucket up to normal capacity,and it provides certain improvements in the relative construction andmounting of the parts so that the lip may be removed and replacedwhenever necessary, with the minimum expenditure of time and effort, andin such way as to inhibit loss of values in dredging.

In prior applications I have disclosed bucket and lip assemblies inwhich provision was made for repair and replacement of the lip withoutthe necessity of disconnecting the bucket from the chain, the mountingbeing of pivotal character and permitting the lip to be rocked tostraddling or seating position. In such prior applications the lip wascradled in cored pockets.

The present invention is a carrying forward of that inventive idea andprinciple through the use of means which enables me to dispense withcored pockets which, under some conditions, might be objectionablebecause of the delay entailed in clearing them preliminary to theattachmerit of the lip.

The nature, characteristic features and scope of the invention morereadily will be understood from the following description taken inconnection with the accompanying drawing, forming a 'part hereof,wherein:

Figure 1 is a sectional view of a chain dredge bucket and lip assemblyembodying features of the invention.

Fig. 2 is a top plan view thereof.

Fig. 3 is a section on line 3-3 of Fig. 1.

Fig. 4 is'a section on line 4--4 of Fig. 1.

Fig. 5 is a detail of the interlock;

Referring to the drawing, 5 represents a chain dredge bucket which,saving the particulars hereinafter noted, may be of conventional form.In accordance with the invention, the hood of the bucket iscast orotherwise provided with integral hub-like extensions or pintles 6 withheaded extremities 7. The hub-like members 6 are in opposing relation onthe insideof the hood adjacent the back wall and they serve as mountingsfor the lip and also assist in preventing spreading of the lip.

Stopping short of the posts or bearing members 6 there is an offsetledge or shoulder 8 which constitutes a limiting stop or abutment forthe lip inwardly of the rim seat 9. 'Ihe lip 10 is formed to straddlethe rim seat through the mement 8 and the latter tapers oif graduallytowards the bottom of the bucket in order to eliminate conditions makingfor choking.

The ends of the lip are formed or provided with open slots 14established by curved arms or grapples 15. Under the construction andarrangement stated, the lip may be swingingly engaged with the pintles 6and eased to its straddling posture relative with Vthe rim seat 9 andsecured against casual displacement in any suitable manner, butpreferably through the intervention of some suitable interlock of thequick-acting type. For example, the lip may be externally provided withan apertured forked extension 16 to fish a co-ordinate member 17 on thebucket through the solicitation of a wedge in the form of a taper bolt18..

1. A chain dredge bucket combined with a lip in straddling relation withthe rim of the bucket,

said bucket having opposed hub-like members, and the lip having itsterminals constructed and arranged swingingly to engage said hub-likeextensions.

2.'A chain dredge bucket having a rim seat and an abutment inwardlythereof and having a pair of opposed hub-like members in spaced relationwith the abutment, and a lip having an inside apron extension insubstantially ush relation with said abutment and having outside apronextensions and having its terminals constructed and arranged for pivotalmounting on the hub-like members.

3. A chain dredge bucket having within the hood and formed integral withopposing walls thereof a pair of trunnions with headed extremities,combined with a lip in straddling relation with the rim of the bucketand having inside and outside apron extensions, said in# side extensionhaving bearing members for cooperation with the trunnions.

4. A chain dredge bucket having within the hood and formed integral withopposing Walls thereof a pair of trunnions with headed extremities,combined with a lip in straddling relation with the rim of the bucketand having inside and outside apron extensions, said inside extentheends of the lip having bearing members for pivotal engagement with saidhub-like members.

6. A chain dredge bucket having a lip seat and a pair of hub-likemembers within the bucket and beyond the lip seat, and a lip havinginside and outside extensions whereby it may be postured in straddlingrelation with the lip seat, the ends of the lip having bearing membersfor pivotal engagement with said hub-like members, said hub-like membershaving collars which are effective to prevent spreading of the ends ofthe lip.

7. A chain dredge bucket having a rim seat for a, straddling lip andhaving an inside abutment or limit stop for the lip, a pair of post-likemembers below the rim seat, and a lip having inside and outside apronextensions and having its ends adapted for pivotal engagement with saidpost-like members.

8. A chain dredge bucket having a rim seat and another seat formed by anoiset ledge or shoulder on the inside wall of the bucket, hubs on theinside Wall of the bucket, and a lip adapted to straddle the rim seatand having its terminals constructed for pivotal engagement with saidhubs, the lip having an inside apron extension which is substantiallyflush fitted to the oiset ledge or shoulder and having spaced outsideextensions to relieve stress on the lip.

9. A chain dredge bucket having a rim seat and another seat formed by anoffset ledge or shoulder on the inside wall of the bucket, hubs on theinside Wall of the bucket, and a lip adapted to straddle the rim seatand having its terminals constructed for pivotal engagement with saidhubs, the lip having an inside apron extension which issubstantiallyflush tted to the offset ledge or shoulder and having spaced outsideextensions to relieve stress on the lip, and means for taking up lostmotion between the lip and bucket.

10. A chain dredge bucket having a straddling lip seat and a continuousledge or shoulder within the bucket and constituting an abutment for aninside apron extension of the lip, pivotal mountings formed integralwith opposed inside walls of the bucket, and a lip having hook-liketerminals for engagement with said pivotal mountings and having aninside apron extension and external bracing. provisions.

WILLIAM H. STIRES.

